Snyder's of Hanover make REALLY good gluten free pretzels that taste just like gluten ones! Even my family can't tell the difference. Glutino also makes pretzels but I haven't tried those. You could also try glutino's table crackers which are kind of like saltines or their round crackers which are kind of like ritz.
I highly recommend the Snyder's pretzels though because they're almost identical to regular pretzels.